一对多:一个用户有多个账户
代码部分
1、User.java
package com.qingruan.bean; import java.util.List; public class User { private Integer id; private String username; private String sex; //查询用户信息同时关联账户信息 private List<Account> accounts; public List<Account> getAccounts() { return accounts; } public void setAccounts(List<Account> accounts) { this.accounts = accounts; } @Override public String toString() { return "User{" + "id=" + id + ", username='" + username + '\'' + ", sex='" + sex + '\'' + '}'; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
2、Account.java
package com.qingruan.bean; public class Account { private Integer aid; private Integer uid; private double money; //在account类假如user类对象作为account类的一个属性 private User user; @Override public String toString() { return "Account{" + "aid=" + ai